// For flags

CVE-2019-14865

grub2: grub2-set-bootflag utility causes grubenv corruption rendering the system non-bootable

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A flaw was found in the grub2-set-bootflag utility of grub2. A local attacker could run this utility under resource pressure (for example by setting RLIMIT), causing grub2 configuration files to be truncated and leaving the system unbootable on subsequent reboots.

Se encontró un fallo en la utilidad grub2-set-bootflag de grub2. Un atacante local podría ejecutar esta utilidad bajo la presión de recursos (por ejemplo, configurando RLIMIT), causando que archivos de configuración de grub2 sean truncados y dejando el sistema no reiniciable en los reinicios posteriores.

A flaw was found in the grub2-set-bootflag utility of grub2. A local attacker could run this utility under resource pressure (for example by setting RLIMIT), causing grub2 configuration files to be truncated and leaving the system unbootable on subsequent reboots.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-08-10 CVE Reserved
  • 2019-11-29 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-267: Privilege Defined With Unsafe Actions
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Gnu
Search vendor "Gnu"
Grub2
Search vendor "Gnu" for product "Grub2"
--
Affected
in Redhat
Search vendor "Redhat"
Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
8.0
Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"
-
Safe
Gnu
Search vendor "Gnu"
Grub2
Search vendor "Gnu" for product "Grub2"
--
Affected
in Redhat
Search vendor "Redhat"
Enterprise Linux Eus
Search vendor "Redhat" for product "Enterprise Linux Eus"
8.1
Search vendor "Redhat" for product "Enterprise Linux Eus" and version "8.1"
-
Safe